The following study aims at investigating the learning effects of the prevention of Sexual abuses that concern the students of special education classes that attend vocational high schools. This is based on the sexual education material provided by the Ministry of Interior, “Protection of personal safety and prevention of Sexual abuses.” According to a year-round analysis of the physically and mentally challenged victims released by the Sexual abuse Prevention Committee, Ministry of Interior in 1999, there were 581 physically and mentally challenged victims, 308 intellectually challenged were included, reaching a total of 53.01% of the physically and mentally challenged victims in Sexual abuses. From the Taipei Domestic Violence and Sexual abuse Prevention Center, ten percent of the victims in the reported cases were physically challenged; four percent of whom were students that were often intellectually challenged. As a result, intellectually challenged students are in consequence the group at the highest risk in Sexual abuses. As a direct result of an eminent threat, the educational department should implement special sexual education programs to prevent such attacks. In the conducted study, we came to knowledge that a group of 14 intellectually challenged students of first grade in a Taiwanese vocational high school protested against the sexual harassment. In the meanwhile activities were implemented for the next following 8 weeks. These activities implemented by researchers had the goal of study with accuracy and test knowledge based on Sexual Attitude Scales and Sexual Communication Scales. This determined the learning effects on sexual knowledge, attitude, and communication that the students possessed. After this experiment, the results were as following: (1) the intellectually challenged students quickly learned the issues related to sexuality education and attitudes concerning the body and its autonomy; however, there was no significant impact on the learning crisis handling capacity, intimate relations and special factors. (2) After teaching sexuality education, the intellectually challenged students showed no significant differences regarding their sexual abilities in expressing and asking for help. The researchers brought up separately concrete suggestions for practical courses and further researches.